explain the significance of respiratory system in living beings. why it is not present in plants?
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respiratory system is the most important part in our body. it is,inhaling and exhaling the air.we take oxygen in and carbon dioxide out.but it is absent in plants because they have different system. that is they exchange the gases through the leaves where the stomata is present
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The respiratory system does two very important things: it brings oxygen into our bodies, which we need for our cells to live and function properly; and it helps us get rid of carbon dioxide, which is a waste product of cellular function.Plants do not need respiratory system because roots , stems, leaves of plants exchange gases for respiration separately. ... They don't have lungs to breathe so they don't need a respiratory system. They have stomata.
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